def castRays(obj: Object,
point: Vector,
direction: Vector,
miniDist: float,
roundType: str = "CEILING",
edgeLen: int = 0):
"""
obj -- source object to test intersections for
point -- origin point for ray casting
direction -- cast ray in this direction
miniDist -- Vector with miniscule amount to add after intersection
roundType -- round final intersection location Vector with this type
edgeLen -- distance to test for intersections
"""
# initialize variables
firstDirection = False
firstIntersection = None
nextIntersection = None
lastIntersection = None
edgeIntersects = False
edgeLen2 = edgeLen * 1.00001
orig = point
intersections = 0
# cast rays until no more rays to cast
while True:
_, location, normal, index = obj.ray_cast(
orig, direction) #distance=edgeLen*1.00000000001)
if index == -1: break
if intersections == 0:
firstDirection = direction.dot(normal)
if edgeLen != 0:
dist = (location - point).length
# get first and last intersection (used when getting materials of nearest (first or last intersected) face)
if dist <= edgeLen2:
if intersections == 0:
edgeIntersects = True
firstIntersection = {
"idx": index,
"dist": dist,
"loc": location,
"normal": normal
}
lastIntersection = {
"idx": index,
"dist": edgeLen - dist,
"loc": location,
"normal": normal
}
# set nextIntersection
if nextIntersection is None:
nextIntersection = location.copy()
intersections += 1
location = VectorRound(location, 5, roundType=roundType)
orig = location + miniDist
if edgeLen != 0:
return intersections, firstDirection, firstIntersection, nextIntersection, lastIntersection, edgeIntersects
else:
return intersections, firstDirection
def cast_rays(obj_eval: Object,
point: Vector,
direction: Vector,
mini_dist: float,
round_type: str = "CEILING",
edge_len: int = 0):
"""
obj_eval -- source object to test intersections for
point -- starting point for ray casting
direction -- cast ray in this direction
mini_dist -- Vector with miniscule amount to add after intersection
round_type -- round final intersection location Vector with this type
edge_len -- distance to test for intersections
"""
# initialize variables
first_direction = False
first_intersection = None
next_intersection_loc = None
last_intersection = None
edge_intersects = False
edge_len2 = round(edge_len + 0.000001, 6)
starting_point = point
intersections = 0
# cast rays until no more rays to cast
while True:
_, location, normal, index = obj_eval.ray_cast(
starting_point, direction) #distance=edge_len*1.00000000001)
if index == -1: break
if intersections == 0:
first_direction = direction.dot(normal)
if edge_len != 0:
dist = (location - point).length
# get first and last intersection (used when getting materials of nearest (first or last intersected) face)
if dist <= edge_len2:
if intersections == 0:
edge_intersects = True
first_intersection = {
"idx": index,
"dist": dist,
"loc": location,
"normal": normal
}
last_intersection = {
"idx": index,
"dist": edge_len - dist,
"loc": location,
"normal": normal
}
# set next_intersection_loc
if next_intersection_loc is None:
next_intersection_loc = location.copy()
intersections += 1
location = vec_round(location, precision=6, round_type=round_type)
starting_point = location + mini_dist
if edge_len != 0:
return intersections, first_direction, first_intersection, next_intersection_loc, last_intersection, edge_intersects
else:
return intersections, first_direction
